Of all the cloth diaper types, the all-in-two cloth diaper is the most flexible to use. It consists of a cover and an insert, usually sold separately. Parents are free to mix and match should they not like the combination that is suggested. With that, I am going to share with you what all in two cloth diaper will most probably not fail you: Best Bottoms,* Thirsties Duo* or Grovia AI2 diapers.*
In this review, we will be comparing these three all-in-two cloth diapers. All of them are roughly nine months used (except for the Thirsties Duo inserts* and Grovia Soakers* (inserts) that we seldom use because of poor performance.
With that, let's get started.
From top to bottom: Best Bottoms (grey and green), Grovia (maroon) and Thirsties Duo (light blue). All photos are taken on their 4th to 5th month of use.
First of all, I would like to emphasize that the Thirsties Duo is not considered as one size. That means you would have to get the Size 1* if your child is below 18 lbs. Since I only started using these three when my daughter was already a toddler, what I got was the Size 2 Thirsties cover* (good for 18 to 40 pounds). With that, let us only compare which between Grovia and Best Bottoms is best fit for infant's use.
Take a look at their smallest settings.
From top to bottom (smallest settings): Grovia looks a little wider in the waistline than Best Bottoms; Thirsties Duo cover Size 2's smallest setting almost looks like as large as the biggest size of some of the pocket diapers I have reviewed here.
Notice that although both Grovia and Best Bottoms can be adjusted to the smallest size possible, Best Bottoms cover is greater in height while Grovia cover is a little wider.
Grovia and Best Bottoms look like they are at par when it comes to fitting a newborn. Thirsties Duo Size 2 is not applicable for infants, you have to get Size 1.
Cover-wise, Thirsties Duo is the thinnest of all, followed by the Best Bottoms and last is Grovia.
Thirsties Duo is made of a very thin wipeable material. Same goes for Best Bottoms except that the material used is thicker and feels more durable. The Grovia cover, however, still has a lining inside that is not wipeable. That is what made the cover a little thicker than the two.
Putting the inserts, Thirsties Duo ends up the sleekest (middle), followed by the Grovia (top), and lastly, the Best Bottoms (bottom).
Grovia is pieced together, compared to the other two where you have the option to just use one or two pieces as you need.
Look at the inserts the three of them is usually paired with. For the Grovia, two pieces are sewn together, making it "1-piece." The Best Bottoms overnight inserts come in 2, but using two would be too bulky. The Thirsties Duo is usually paired with a sized insert (sold in 2 as well), and putting the two on top of each other doesn't have any bearing on the "bulk" of the overall diaper.
Despite the two pieces of Thirsties Duo inserts placed on top of each other, it still is the least bulky compared to the other two with just "one" insert each (but of course, Grovia's soakers is two pieced in 1).
Of the three, Thirties Duo is by far the largest and can fit toddlers up to 40 pounds. I'm not kidding, but it looks like it can fit a teenager with a slender body, too! LOL. It's good that you don't have to worry about the Thirsties cover being outgrown so soon by your child but remember, it's not one size. And we are talking about the Size 2 cover here. You have to get the Size 1 for children below 18 pounds.
If we are referring to a one-size AI2 cover that can grow with your toddler a little while longer, the Grovia cover can do the job as it is.
However, it looks like Best Bottoms has developed a solution for adjusting the waist to the largest setting possible. Of all the cloth diapers I have in my stash, only Best Bottoms offers extender tabs.
Get the extender tabs when the cover cannot fit your child anymore. My daughter, 33 pounds as of writing this, can still comfortably fit in the cover.
The goal of the extender tabs, as its name suggests, is to extend the diaper cover to the largest setting possible. See the photo below. If you attach it to the Best Bottoms cover and set it to the biggest size possible, what you get is larger than the Thirsties Duo Size 2 cover. That means a kid that is more than 40 pounds can still use it.